Form-clamp.



J. S. MURPHY.

FORM CLAMP.

APPLICATION FILED JULY 29, $915.

Eatnted July 11, 1916.

2 SHEETS-SHEET I.

WIT/V58 ZZM w ,F INVENTOR A TTORNEYS I 1 1,8..MURPHY.

FORM CLAMP. APPLICATION FILED JULY 29 1915.

iffi,%@. Patented July 12., 1914 2 SHEETS-SHEET 2.

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FOBI.'.-CLAMP.

Specification ofLetters-E'atent.

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Application filed July 29,1915. Serial No. 42,565.

1 a all w 71 0 In it may on fern to it known that I, Join. S. MtniPi'iY, a citizen of the United States, and a resident of the city of New Brooklyn, in the county of Kings and State of New York. have invented a new and 1111- proved l orm-Clamp, of which the following is a talk-clear, and exact description. 7

The invention relates to molds or forms employed in concrete construction work; and its object is to provide a new and improved form clamp arranged to securely connect the sides of a mold with and to prevent the same when filling in the concrete. 7 Another object is to permit opening the form clamp for the removal of the mold sides and the clamp.

In order to accomplish the desired result, use is made of a main clamp member pro vided at one end witha hook and at the other end with an opening for the insertion of a wedge adapted to abut against the stud or other support, the h' olcbeing adapted and provided with to hook onto a connecting member extending across the mold from-one side to the other.

A practical enihodin lent ings forming a part of in whi ch similar charactersof reference indicate corresponding parts in all the views. Figure 1 is a sectional side elevation of-janordinary mold. for building concrete w'alls the improved clamp, the v section being on the line 1-l of'Fig, Fig. 18' a sectional plan view ot the same to a floor mold; Fig. 4 is a similaryiew of a modified form of the same; a longitudinal sectional elevation of the same side elevation of the clamp abutment mold.

Thesides of the mold illustrated in Figs. of boards A; longitudinal braces 13 and studs, U, the studs being spaced l and 2 consist a'p: rt a suitable distance accordingto the thickness of the concrete wall to beihuilt. Each of the studs G is preferably formed of two spaced men'ibers connected with each other at'lntervals by connecting blocks (1 i The boards A are providedfwith registering apertures A ior the passage'oit aconnecting tand 5 use is made of a connecting member inenilier D provided at each end with or more eyes D, the ends progectrng beyond York, borough of each other from spreading of readily of the inventiohr is represented in the accompanying draw this specification,

on the line 22 of Fig. 1; Fig. 3 is a"se c' tional side elevation of the clamp as applied ri is a;

4 and 'Figjfiis a a as applied to an,

eyes Dat each end of the-connecting mem berl) is engaged by a hook E ()l a mold clamp E, preferably tor-medof a flat piece of iron having a body E provided with. an opening. E for the passage-of a wedge F adapted to abut against the outer edges of the members (If sponding side of the mold. The'wedge F is preferably attached to one G secured at its other end to one of the stud members C.. The clamp E is also provided extending guide slot, E through which passes a pin H driven through the stud member O of astud C. By reference to Fig. 1' it will be noticed that the hook. E"

extends at an angle from the outer end of the shank E forming an integral part of the body member E the arrangement being; such that'the hook E is within the plane of the/body portion E It will be noticed that when the two clamps Eai e in engagement with the eyes of the connectingineinberD and the Wedges l are driven honie, then the mold sides are not liahle'to bulge outward when vfill M I "tween the Inoldfsides, Aft r materialfhas set and it isdesired to remove the mold, it is only necessary for the o'pera- ,tor to. disengage the wedges Ftronrthe nnt part of the} correspondingstud (,3 and hence the clamp E can be readily engaged with the-connecting member- I); and the Wedge driven in place'as It is understood' that each clamp E can readily swing and sl'deon the pin H "to engage the hook E: with the corresponding "eyeD o fvthe connecting member I).

When it is desiredto holdlfa A in place on the under side of Lbeams I, then the hooks E of the clanipjs E are hooked onto the hases of the the wedges} are driven through the open,-

supporting the mold boards A w In the construction illustrated in Figs.

J in tlieform. of an L and hooked onto the body portion E of each with a lengthwise It will be noticed I-bearhs I and I of a stud C on the correj r o end of a chain..

in the concrete material be- ,the concrete above explained,

floor mold I against the under side of heamsC I base of the correspondingl beam I. The

connecting member J is provided at its lower end with an eye J into which hooks the hook E of the clamp E engaged by the wedge F abutting againsta sectional beam C similar to the stud C, it being understood that this beam G supports the bars Gcarrying the mold boards A When forming concrete abutments or similar structures, as shown in Fig. 6, use is made of a connecting member K in the form of a piece of wire provided at its ends with loops or eyes K engaged by the hooks .1 and 2,

E of the clamps E held on the studs C,

' the same as above described in reference to the construction of the mold shown in Figs. so that further description of the same is not deemed necessary.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent:

1. Incombination, a mold having sides, studs engaging the sides, a connecting member extending transversely through the said mold sides and having eyes at the ends,

clamps extending between the studs and .each having an apertured-body portion and a shank extending from the body portion and terminating in a hook, the hooks of the clamps being'adapted to engage the eyes at the ends of the said, connecting member,

' income engage the eyes at the ends of the said connecting member, the said clamps having lengthwise extending slots, pins adapted to be driven through the said slots into the sides of the; studs, and wedges driven through the apertures in the body portions and abutting against the outer edges of the said studs.

3. In combination, a mold having sides, studs engaging the sides and each formed of spaced stud members, a connecting member extending transversely through the said mold sides and having eyes at the ends, clamps slidably mounted between the studs each having a body portion and a shank provided with an angular hook engaging the corresponding eye of the connecting member, the body portion of each clamp having an opening and the clamps extending between the stud members, and wedges driven into the said body openings and abutting against the outer edges of the said studs.

4. The combination with a mold side having an opening therein and beams engaging the side, of a clamp having a rectangu lar apertured body and providedwith a shank projecting from one-end thereof in direction of the length of the body and terminating in a hook for engaging a member, means for slidably mounting the clamp on a beam, and a wedge passing through the opening of the clamp and engaging said beam.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. H

JOHN STEPHEN MURPHY.

Witnesses:

PATRICK J. MURPHY, Gnonen BUTLER. 

